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<?php |
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/****************************************************************************** |
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* Wikipedia Account Creation Assistance tool * |
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* * |
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* All code in this file is released into the public domain by the ACC * |
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* Development Team. Please see team.json for a list of contributors. * |
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******************************************************************************/ |
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namespace Waca\Pages; |
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use Waca\DataObjects\User; |
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use Waca\Tasks\InternalPageBase; |
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use Waca\WebRequest; |
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class PageErrorLogViewer extends InternalPageBase |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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protected function main() |
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{ |
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$this->setHtmlTitle('Exception viewer'); |
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$user = User::getCurrent($this->getDatabase()); |
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$this->assign('canView', $this->barrierTest('view', $user)); |
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$this->assign('canRemove', $this->barrierTest('remove', $user)); |
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// Get the list of exception logs from the error log directory |
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$errorLogDirectory = $this->getSiteConfiguration()->getErrorLog(); |
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$files = scandir($errorLogDirectory); |
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// Exclude the files we know should be there |
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$filteredFiles = array_filter($files, function($file) { |
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return !in_array($file, ['.', '..', 'README.md']); |
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}); |
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$exceptionDetails = array_map(function($item) use ($errorLogDirectory) { |
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$filename = realpath($errorLogDirectory) . DIRECTORY_SEPARATOR . $item; |
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return [ |
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'id' => str_replace('.log', '', $item), |
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'date' => date('Y-m-d H:i:s', filemtime($filename)), |
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'data' => str_replace($this->getSiteConfiguration()->getFilePath(), '.', |
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unserialize(file_get_contents($filename))), |
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]; |
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}, $filteredFiles); |
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$this->assign('exceptionEntries', $exceptionDetails); |
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$this->setTemplate('errorlog/main.tpl'); |
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} |
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protected function view() |
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{ |
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$this->setHtmlTitle('Exception viewer'); |
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$requestedErrorId = WebRequest::getString('id'); |
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$safeFilename = $this->safetyCheck($requestedErrorId); |
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if ($safeFilename === false) { |
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$this->redirect('errorLog'); |
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return; |
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} |
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// note: at this point we've done sufficient sanity checks that we can be confident this value is safe to echo |
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// back to the user. |
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$this->assign('id', $requestedErrorId); |
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$this->assign('date', date('Y-m-d H:i:s', filemtime($safeFilename))); |
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$data = unserialize(file_get_contents($safeFilename)); |
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$this->assign('server', $data['server']); |
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$this->assign('get', $data['get']); |
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$this->assign('post', $data['post']); |
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$this->assign('globalHandler', $data['globalHandler']); |
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$exceptionList = []; |
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$current = $data; |
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do { |
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$ex = [ |
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'exception' => $current['exception'], |
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'message' => str_replace($this->getSiteConfiguration()->getFilePath(), '.', $current['message']), |
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'stack' => str_replace($this->getSiteConfiguration()->getFilePath(), '.', $current['stack']), |
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]; |
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$exceptionList[] = $ex; |
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$current = $current['previous']; |
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} |
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while ($current !== null); |
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$this->assign('exceptionList', $exceptionList); |
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$this->setTemplate('errorlog/details.tpl'); |
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} |
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public function remove() |
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{ |
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$safeFilename = $this->safetyCheck(WebRequest::getString('id')); |
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if ($safeFilename === false) { |
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$this->redirect('errorLog'); |
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return; |
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} |
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unlink($safeFilename); |
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$this->redirect('errorLog'); |
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return; |
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} |
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/** |
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* @param string|null $requestedErrorId |
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* |
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* @return bool|string |
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*/ |
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protected function safetyCheck(?string $requestedErrorId) |
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{ |
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if ($requestedErrorId === null) { |
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return false; |
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} |
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// security - only allow hex-encoded filenames, as this is what is generated. |
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// This is prefixed with the configured directory. Path traversal is protected against due to . and / not being |
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// part of the hex character set. |
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if (!preg_match('/^[a-f0-9]{40}$/', $requestedErrorId)) { |
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return false; |
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} |
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$errorLogDirectory = $this->getSiteConfiguration()->getErrorLog(); |
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$filename = realpath($errorLogDirectory) . DIRECTORY_SEPARATOR . $requestedErrorId . '.log'; |
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if (!file_exists($filename)) { |
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return false; |
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} |
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return $filename; |
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} |
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} |
enwikipedia-acc /
waca
